Heating-boiler.



PATENTED MAR. 12, 1907.

' 0. L. HOLDEN. HEATIN APPLIOATION FILED FEB. 10, 1905.

GBOILBR.

[N VENT OR.

A TTORNEY UNITED sTATEs PATENT oEEIoE.

. HEATING-BOILER.

Specification of Letters Patent.

Patented March 12, 1907.

Application filed February 10,1905. Serial No. $25,056.

To all whom it may concern:

Be it known that I, OHARLEs L. HOLDEN, a citizen of the United States, residing at Indianapolis, in the county of-Marion and State of Indiana, have invented new and useful Improvements in Heating-Boilers; and I do declare the following to be a full, clear, and exact description of the invention, reference being had to the accompanying drawings, and to the letters and figures of re erence marked thereon, which forms a part of this specification.

This invention relates to boilers or vessels in which water may be heated either for the purpose of supplying hot water for various uses or for 'e'nerating steam from the water to be used for heating or otherwise, andthe invention has reference particularly to features'thereof that eflect economy in the use of fuels for heating the water. The object of jthe invention primarily is to provide improvementsin the construction of boilers ,of the above mentioned class whereby the heat from the fuel may be util ized to the best advantage not only to quickly heat the water, but to attain also ultimate economy of fuel inoperation.

A More specifically, it is an object to provide the maxlmum amount of heating-surfaces that may be advantageously exposed to the direct action of the heat that may be generated by the fuel, the im rovements having reference more particularl; to sectional castmetal boilersyas well as to single section or independent boilers 0r heaters. i

. Vtith the above-mentioned and other objects of minor importance in View the invention consists in providing water-heating vessels of boilers or heaters with lateral branches of novel form and arrangement and in providing novel forms of fire-surfaces for heating the water; and the invention consists, further, in the novel parts and the combinations and arrangements of parts, as hereinafter articularly described and claimed.

Re erring to the drawings, Figure 1 is an elevation of a boiler or water-heating vessel j and tank or reservoir, the boiler having a jacket which is shown in vertical central section and the boiler being connected to the tank in a novel manner; Fig. '2, a top lan of the apparatus with the top of the jac et cut ofi; Fig. 3, a vertical central sectional view of the boiler on the line A A in Fig. 2; Fig. 4, a vertical sectional view of the boiler on the provided at the to *soon as received therein from the boiler.

I line B B in Fig. 2; Fig. 5, a horizontal sectional View of the boiler on the line C C in Fig. 1, and Fig. 6 a horizontal sectional View of the bolier on the line D D in Fig. 1..

' Similar reference characters'in the several figures of the drawings designate correspondin parts or features.

in practically embodying the invention the boiler may be composed either of a single suitably-designed independent section or of any suitable number of sections suitably adapted to be connected together so as to be detachable in emergenc In construction a boi er is provided which is adapted to be used either in groups or inde-v pendently, as shown for illustrative purposes. The boiler cular, with incllned sides, its diameter being comprises a shell E, which is cir-- greater at its top than at its bottom, and the I shell is provided with a relatively large number of radiatinglateral branches d e f g Z2, that are V shape in cross-section,- andis connected to a tank- F by circulating-pipes a andb. l The upper branches d are all arranged in one horizontal plane. The branches e,of less de th and greater length, are arranged in' anot er horlzontal plane and difl'erentvertical planes than are the branches d. The other branches b, g, and h are arranged in differentlower planes, the lowermost branches being theonger and shallower, all arranged in staggered order, as shown, and the closedendsof the branches being all equal distances from the axis of the shell. A jacket G incloses the boiler except at its bottom, and any suitable annular gasor oil approximatelyat the plane indicated by the dotted lines at c, the jacket havin a suitable openin in its top for the escape o the fumes o combustion. The heat generated by theburning gas willpass upwardly between the branches and also between theends thereof and the jacket, the latter serving the urpose burner may be arranged 'of fire-box walls with-the indefen ent= arrangement of the boiler, which, owever,"as

above stated, may: form one connected part ofa sectional boiler of larger cap acity;

It will be observed that the connecting-1 pipe bqextends from the tori); of the heatingvessel to the top of. the tank the tankbeing thereof, as usual, with an outlet-pipe,;and a so obviously has an inlet-- pipe. connected thereto, so t at hotgwater may be drawn from the top of the. tank as IOC 'Iro

\ larger end thereof upward when in In practical use the heat from the fire will rise within the jacket G about the boilershell E and will be deflected by the branches it against the branches 9 and by these against the branches f, and so on as the heat rises it will be deflected against each higher series of l branches, a portion of the heat rising be tween the ends of the branches and the acket or outer wall of the heat-passage.

The lateral branches of the boiler, aswill be apparent, provide a large amount of heating-surface, which is also largely increased by reason of the V shape thereof. The lower portions of the shell E and branches being narrow permits the water therein to become heated rapidly, which tends to produce rapid circulation, and consequently rapid heating of the whole bulk of water in the boiler.

Bein aware of Letters Patent No. 576,313, grante to me February 2, 1897, I do not now broadly claim a tapering boiler-shell with the erative position and decreasing in size regu arly toward the bottom thereof, nor the heater or burnerarranged above the bottom of such boiler-shell but What I do claim as new is 1. A boiler including a shell having a plurality of series of branches, the branches of the different series having difierent lengths decreasing in length from one end to the other end of the shell.

2. A boiler including a shell having a plurality of series of integral branches the openings to which in the shell are narrower at one end than at the other end thereof.

3. A boiler including an oblong shell hav ing main portions of the wall thereof inclined to its major axis and branch portions that have opposing side walls inclined to planes that are at rightangles to the major axis.

4. A boiler including a boiler-shell having a greater diameter at its top than at its bot tom and provided with lateral branches that j are longer and narrower at their bottoms than at their tops and closed at their ends.

5. A 'boiler including an oblong shell having a plurality of series of lateral branches 1 formed integral therewith, one end of the shell having less diameter than the other end thereof, and the branches having inclined sides, a jacket extending about the shell and the branches thereof, an oblong tank, a pipe connected to one end part of the tank and also to the smaller end part of the shell adj acent to a series of the branches thereof, and a pipe connected to the other end part of the tank and also to the larger end part of the shell adjacent to a separate series of the branches thereof.

6. A boiler including an oblong circular shell having a plurality of series of lateral branches extending radially t0 the axis of the shell, the lengths of the branches differing in the different series with a burner arranged nearer to the longer than the shorter branches, a jacket extending about the shell and the branches thereof, an oblong tank having a pipe connected to the topl thereof, the 1 eing connected also to t e top of the s e with a pipe connected to the bottoms of the tank and the shell.

7. A boiler including a shell provided with a plurality of series of radiatin branches each series in a different horizonta plane, the branches of either series bein in radial planes between the planes of the ranches in next adjacent series thereof, the branches extending an equal distance from the axis of the shell, and the shell having less diameter at the bottom than at the top thereof.

In testimony whereof I affix my signature in presence of two witnesses.

CHARLES L. HOLDEN.

Witnesses:

WM. H. PAYNE, E. T. SiLvrUs. 

